A spool of cable would be as bad as steel.
It would be nice to know where in PA it happened. The link wasn’t helpful.
Route 40, Fayette County PA, near Pittsburgh. Stear clear.
The aftermath of the unrolled rolls of steel sheet I've seen blocked the freeeway and took quite a while to cut up into pieces to remove from the scene. Plus a buncha concrete pavement sections got smashed from the initial bouncing and had to be replaced in short order.
Good to periodically check your loads and have redundant chaining.
Route 40 near Uniontown.